Drug companies are beginning to wake up to this new risk factor By: MarketWatch March 19, 2018 at 08:51 AM EDT New programs that target coupons for expensive medications have taken off. Read More >> Related Stocks: Amgen Eli Lilly HEALTHCARE Novartis Ag ADR Optinose Inc Pfizer S&P Pharmaceuticals SPDR Sanofi-Aventis S.A. ADR